Who was the first man to break the sound barrier?
- Buzz Aldrin
- Charles Lindbergh
- John Glenn
- Chuck Yeager
Answer: On this day in 1947, U.S. Air Force Captain Chuck Yeager became the first person to break the sound barrier. Yeager piloted the rocket-powered Bell X-1 to a speed of Mach 1.07, becoming the first person to fly faster than the speed of sound. The X-1 was lifted to an altitude of 25,000 feet by a B-29 aircraft and then released through the bomb bay, rocketing to 40,000 feet and exceeding 662 miles per hour (the sound barrier at that altitude). Because of the secrecy of the project, Yeager’s achievement was not announced until June 1948.
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